diff options
Diffstat (limited to 'sql/sql_class.h')
| -rw-r--r-- | sql/sql_class.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/sql/sql_class.h b/sql/sql_class.h index 4556487bdfe..2dc2fb61e9d 100644 --- a/sql/sql_class.h +++ b/sql/sql_class.h @@ -1028,6 +1028,21 @@ public: LEX_STRING name; /* name for named prepared statements */ LEX *lex; // parse tree descriptor /* + LEX whith represent curent statement (conventional, SP or PS) + + For example during view parsing THD::lex will point to the views LEX and + THD::stmt_lex will point on LEX of the statement where the view will be + included + + Now used to have alwais correct select numbering inside statemet + (LEX::current_select_number) without storing and restoring a global + counter which was THD::select_number. + + TODO: make some unified statement representation (now SP has different) + to store such data like LEX::current_select_number. + */ + LEX *stmt_lex; + /* Points to the query associated with this statement. It's const, but we need to declare it char * because all table handlers are written in C and need to point to it. @@ -2690,7 +2705,6 @@ public: uint tmp_table, global_disable_checkpoint; uint server_status,open_options; enum enum_thread_type system_thread; - uint select_number; //number of select (used for EXPLAIN) /* Current or next transaction isolation level. When a connection is established, the value is taken from |